18997100

素因数分解:

$2^2\times 5^2\times {\mathrm{271}}^1\times {\mathrm{701}}^1$

素因数の和:986

約数の個数: 36

約数和(自身を含む): 41434848

約数和(自身を除く): 22437748

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 271, 542, 701, 1084, 1355, 1402, 2710, 2804, 3505, 5420, 6775, 7010, 13550, 14020, 17525, 27100, 35050, 70100, 189971, 379942, 759884, 949855, 1899710, 3799420, 4749275, 9498550, 18997100]

約数ペア:

[(1, 18997100), (2, 9498550), (4, 4749275), (5, 3799420), (10, 1899710), (20, 949855), (25, 759884), (50, 379942), (100, 189971), (271, 70100), (542, 35050), (701, 27100), (1084, 17525), (1355, 14020), (1402, 13550), (2710, 7010), (2804, 6775), (3505, 5420)]